[pve-devel] [PATCH pve-manager 3/4] api2: network: check permissions for local bridges

[Fabian Grünbichler]

On May 26, 2023 9:27 am, Alexandre Derumier wrote:
> Signed-off-by: Alexandre Derumier <aderumier at odiso.com>
> ---
>  PVE/API2/Network.pm | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/PVE/API2/Network.pm b/PVE/API2/Network.pm
> index b3faba1a..ba3b3e0e 100644
> --- a/PVE/API2/Network.pm
> +++ b/PVE/API2/Network.pm
> @@ -240,22 +240,20 @@ __PACKAGE__->register_method({
>  
>  	if (my $tfilter = $param->{type}) {
>  	    my $vnets;
> -	    my $vnet_cfg;
> -	    my $can_access_vnet = sub { # only matters for the $have_sdn case, checked implict
> -		return 1 if $authuser eq 'root at pam' || !defined($vnets);
> -		return 1 if !defined(PVE::Network::SDN::Vnets::sdn_vnets_config($vnet_cfg, $_[0], 1)); # not a vnet
> -		$rpcenv->check_any($authuser, "/sdn/vnets/$_[0]", ['SDN.Audit', 'SDN.Allocate'], 1)
> +	    #check access for local bridges
> +	    my $can_access_vnet = sub {
> +		return 1 if $authuser eq 'root at pam';
> +		return 1 if $rpcenv->check_any($authuser, "/sdn/zones/local", ['SDN.Audit', 'SDN.Allocate'], 1);
> +		return 1 if $rpcenv->check_any($authuser, "/sdn/vnets/$_[0]", ['SDN.Audit', 'SDN.Allocate'], 1);

here the same question arises - is there anything guarding against name
collisions between SDN vnets and local bridges that pretend to be vnets?
;)

>  	    };
>  
>  	    if ($have_sdn && $param->{type} eq 'any_bridge') {
>  		$vnets = PVE::Network::SDN::get_local_vnets(); # returns already access-filtered
> -		$vnet_cfg = PVE::Network::SDN::Vnets::config();
>  	    }
>  
>  	    for my $k (sort keys $ifaces->%*) {
>  		my $type = $ifaces->{$k}->{type};
>  		my $match = $tfilter eq $type || ($tfilter =~ /^any(_local)?_bridge$/ && ($type eq 'bridge' || $type eq 'OVSBridge'));
> -
>  		delete $ifaces->{$k} if !($match && $can_access_vnet->($k));
>  	    }
>  
> -- 
> 2.30.2
> 
> 
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